1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * rcar_du_plane.h -- R-Car Display Unit Planes
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2013-2014 Renesas Electronics Corporation
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #ifndef __RCAR_DU_PLANE_H__
11*4882a593Smuzhiyun #define __RCAR_DU_PLANE_H__
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <drm/drm_plane.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun struct rcar_du_format_info;
16*4882a593Smuzhiyun struct rcar_du_group;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun /*
19*4882a593Smuzhiyun * The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
20*4882a593Smuzhiyun * As using overlay planes requires at least one of the CRTCs being enabled, no
21*4882a593Smuzhiyun * more than 7 overlay planes can be available. We thus create 1 primary plane
22*4882a593Smuzhiyun * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
23*4882a593Smuzhiyun */
24*4882a593Smuzhiyun #define RCAR_DU_NUM_KMS_PLANES 9
25*4882a593Smuzhiyun #define RCAR_DU_NUM_HW_PLANES 8
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun enum rcar_du_plane_source {
28*4882a593Smuzhiyun RCAR_DU_PLANE_MEMORY,
29*4882a593Smuzhiyun RCAR_DU_PLANE_VSPD0,
30*4882a593Smuzhiyun RCAR_DU_PLANE_VSPD1,
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun struct rcar_du_plane {
34*4882a593Smuzhiyun struct drm_plane plane;
35*4882a593Smuzhiyun struct rcar_du_group *group;
36*4882a593Smuzhiyun };
37*4882a593Smuzhiyun
to_rcar_plane(struct drm_plane * plane)38*4882a593Smuzhiyun static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun return container_of(plane, struct rcar_du_plane, plane);
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun /**
44*4882a593Smuzhiyun * struct rcar_du_plane_state - Driver-specific plane state
45*4882a593Smuzhiyun * @state: base DRM plane state
46*4882a593Smuzhiyun * @format: information about the pixel format used by the plane
47*4882a593Smuzhiyun * @hwindex: 0-based hardware plane index, -1 means unused
48*4882a593Smuzhiyun * @colorkey: value of the plane colorkey property
49*4882a593Smuzhiyun */
50*4882a593Smuzhiyun struct rcar_du_plane_state {
51*4882a593Smuzhiyun struct drm_plane_state state;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun const struct rcar_du_format_info *format;
54*4882a593Smuzhiyun int hwindex;
55*4882a593Smuzhiyun enum rcar_du_plane_source source;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun unsigned int colorkey;
58*4882a593Smuzhiyun };
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun static inline struct rcar_du_plane_state *
to_rcar_plane_state(struct drm_plane_state * state)61*4882a593Smuzhiyun to_rcar_plane_state(struct drm_plane_state *state)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun return container_of(state, struct rcar_du_plane_state, state);
64*4882a593Smuzhiyun }
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun int rcar_du_atomic_check_planes(struct drm_device *dev,
67*4882a593Smuzhiyun struct drm_atomic_state *state);
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun int __rcar_du_plane_atomic_check(struct drm_plane *plane,
70*4882a593Smuzhiyun struct drm_plane_state *state,
71*4882a593Smuzhiyun const struct rcar_du_format_info **format);
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun int rcar_du_planes_init(struct rcar_du_group *rgrp);
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
76*4882a593Smuzhiyun const struct rcar_du_plane_state *state);
77*4882a593Smuzhiyun
rcar_du_plane_setup(struct rcar_du_plane * plane)78*4882a593Smuzhiyun static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun struct rcar_du_plane_state *state =
81*4882a593Smuzhiyun to_rcar_plane_state(plane->plane.state);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun return __rcar_du_plane_setup(plane->group, state);
84*4882a593Smuzhiyun }
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun #endif /* __RCAR_DU_PLANE_H__ */
87